#!/bin/bash
#
#  Copyright (c) 2018, The OpenThread Authors.
#  All rights reserved.
#
#  Redistribution and use in source and binary forms, with or without
#  modification, are permitted provided that the following conditions are met:
#  1. Redistributions of source code must retain the above copyright
#     notice, this list of conditions and the following disclaimer.
#  2. Redistributions in binary form must reproduce the above copyright
#     notice, this list of conditions and the following disclaimer in the
#     documentation and/or other materials provided with the distribution.
#  3. Neither the name of the copyright holder nor the
#     names of its contributors may be used to endorse or promote products
#     derived from this software without specific prior written permission.
#
#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
#  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
#  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
#  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
#  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
#  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
#  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
#  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
#  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
#  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
#  POSSIBILITY OF SUCH DAMAGE.
#

set -e
set -x

die()
{
    echo " *** ERROR: " "$*"
    exit 1
}

at_exit()
{
    EXIT_CODE=$?

    sudo killall expect || true
    sudo killall ot-ctl || true
    sudo killall ot-daemon || true
    sudo killall ot-cli || true
    sudo killall ot-rcp || true
    sudo killall socat || true

    exit $EXIT_CODE
}

build()
{
    make -f examples/Makefile-simulation
    make -f src/posix/Makefile-posix PLATFORM_NETIF=1 PLATFORM_UDP=1 UDP_FORWARD=0 MAX_POWER_TABLE=1
}

check()
{
    trap at_exit INT TERM EXIT

    SOCAT_OUTPUT=/tmp/ot-socat
    OT_OUTPUT=/tmp/ot-output
    socat -d -d pty,raw,echo=0 pty,raw,echo=0 >/dev/null 2>$SOCAT_OUTPUT &
    while true; do
        if test "$(head -n2 $SOCAT_OUTPUT | wc -l)" = 2; then
            RADIO_PTY=$(head -n1 $SOCAT_OUTPUT | grep -o '/dev/.\+')
            CORE_PTY=$(head -n2 $SOCAT_OUTPUT | tail -n1 | grep -o '/dev/.\+')
            break
        fi
        echo 'Waiting for socat ready...'
        sleep 1
    done
    echo 'RADIO_PTY' "$RADIO_PTY"
    echo 'CORE_PTY' "$CORE_PTY"

    RADIO_NCP_PATH="$PWD/output/simulation/bin/ot-rcp"

    # shellcheck disable=SC2094
    $RADIO_NCP_PATH 1 >"$RADIO_PTY" <"$RADIO_PTY" &

    # Cover setting a valid network interface name.
    readonly VALID_NETIF_NAME="wan$(date +%H%M%S)"

    RADIO_URL="spinel+hdlc+uart://${CORE_PTY}?region=US&max-power-table=11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26"

    if [[ ${DAEMON} == 1 ]]; then
        sudo "$PWD/output/posix/bin/ot-daemon" -I "${VALID_NETIF_NAME}" "${RADIO_URL}" &
        sleep 1
        OT_CLI_CMD="$PWD/output/posix/bin/ot-ctl"
        sudo "${OT_CLI_CMD}" panid 0xface | grep 'Done' || die 'failed to set panid with ot-ctl'

        # verify this reset and factoryreset end immediately
        sudo "${OT_CLI_CMD}" reset
        # sleep a while for daemon ready
        sleep 2
        sudo "${OT_CLI_CMD}" factoryreset
    else
        OT_CLI="$PWD/output/posix/bin/ot-cli"
        sudo "${OT_CLI}" -I "${VALID_NETIF_NAME}" -n "${RADIO_URL}"

        # Cover setting a too long(max is 15 characters) network interface name.
        # Expect exit code to be 2(OT_EXIT_INVALID_ARGUMENTS).
        readonly INVALID_NETIF_NAME="wan0123456789123"
        sudo "${OT_CLI}" -I "${INVALID_NETIF_NAME}" -n "${RADIO_URL}" || test $? = 2

        OT_CLI_CMD="$PWD/output/posix/bin/ot-cli ${RADIO_URL}"
    fi

    sudo expect <<EOF | tee "${OT_OUTPUT}" &
spawn ${OT_CLI_CMD}
send "radiourl\r\n"
expect "${RADIO_URL}"
expect "Done"
send "region\r\n"
expect "US"
expect "Done"
send "panid 0xface\r\n"
expect "Done"
send "ifconfig up\r\n"
expect "Done"
send "thread start\r\n"
expect "Done"
sleep 5
send "state\r\n"
expect "leader"
expect "Done"
send "extaddr\r\n"
expect "Done"
send "dataset active\r\n"
expect "Done"
send "ipaddr\r\n"
expect "Done"
send "coex\r\n"
expect "Done"
send "coap start\r\n"
expect "Done"
send "coap resource TestResource\r\n"
expect "Done"
send "coap set TestContent\r\n"
expect "Done"
wait
EOF

    # wait until the node becomes leader
    while true; do
        sleep 5
        if grep -q leader $OT_OUTPUT; then
            break
        else
            echo 'Still waiting for leader'
        fi
    done

    netstat -an | grep -q 5683 || die 'Application CoAP port is not available!'

    extaddr=$(grep -azoP 'extaddr[\r\n]+\K[0-9a-z]{16}' $OT_OUTPUT | tr -d '\0')
    echo "Extended address is: ${extaddr}"

    if [[ ${DAEMON} == 1 ]]; then
        sudo killall -9 expect || true
        sudo killall -9 ot-ctl || true
        NETIF_INDEX=$(ip link show "${VALID_NETIF_NAME}" | cut -f 1 -d ":" | head -n 1)
        sudo PATH="$(dirname "${OT_CLI_CMD}"):${PATH}" \
            python3 "$PWD/tests/scripts/misc/test_multicast_join.py" "${NETIF_INDEX}" \
            || die 'multicast group join failed'
    fi

    prefix=$(grep -aoP 'Mesh Local Prefix: \K[0-9a-f:]+(?=::\/64)' $OT_OUTPUT | tr -d '\r\n')
    LEADER_ALOC="$prefix::ff:fe00:fc00"
    # Retrievie test resource through application CoAP
    coap_response=$(coap-client -B 5 -m GET "coap://[${LEADER_ALOC}]:5683/TestResource")
    echo "CoAP response is: ${coap_response}"

    # Verify CoAP response contains the test content
    if [[ ${coap_response} == *TestContent* ]]; then
        echo 'Success'
    else
        die 'Failed to access application CoAP'
    fi

    # Retrievie extended address through network diagnostic get
    coap_response=$(echo -n '120100' | xxd -r -p | coap-client -B 5 -m POST "coap://[${LEADER_ALOC}]:61631/d/dg" -f-)

    # Verify Tmf CoAP is blocked
    if [[ -z ${coap_response} ]]; then
        die 'Tmf is not blocked'
    fi
}

main()
{
    case $1 in
        build)
            build
            ;;
        check)
            check
            ;;
        *)
            build
            check
            ;;
    esac
}

main "$@"
